Mathematics, 17.02.2021 19:50, kimlyn58p0wyn0
Spencer had a sack filled with pounds of cement. He removed some of the cement from the sack and put it into three buckets. He put pounds of cement in each bucket.
Spencer says he has about 42 pounds of cement left in the sack. Is his statement reasonable?
A.
This is not reasonable because can be rounded to 66 and can be rounded to 8. Since 66 − 8 = 58, he would have about 58 pounds left in the sack.
B.
This is reasonable because can be rounded to 66 and can be rounded to 8. Since 66 − 3(8) = 42, he would have about 42 pounds left in the sack.
C.
This is not reasonable because can be rounded to 65 and can be rounded to 9. Since 65 − 9 = 56, he would have about 56 pounds left in the sack.
D.
This is not reasonable because can be rounded to 65 and can be rounded to 9. Since 65 − 3(9) = 38, he would have about 38 pounds left in the sack.
Answers: 1
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Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions. a. x2 − 4x − 7 = 0b. 4r2 + 11r − 3 = 0c. 3m2 + 7 = 0d. t2 + 2t + 1 = 0
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